US8162979B2 - Medical device and method to correct deformity - Google Patents

Medical device and method to correct deformity Download PDF

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Publication number
US8162979B2
US8162979B2 US12/134,058 US13405808A US8162979B2 US 8162979 B2 US8162979 B2 US 8162979B2 US 13405808 A US13405808 A US 13405808A US 8162979 B2 US8162979 B2 US 8162979B2
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force
rod
vertebra
adjustment
reel
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US20090012565A1 (en
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Dan Sachs
Corbett Stone
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K2M Inc
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K Spine Inc
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Priority to US12/134,058 priority Critical patent/US8162979B2/en
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Publication of US20090012565A1 publication Critical patent/US20090012565A1/en
Assigned to K SPINE, INC. reassignment K SPINE, INC. CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). Assignors: VERTECH, INC.
Assigned to VERTECH, INC. reassignment VERTECH, INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: STONE, CORBETT, SACHS, DAN
Priority to US13/446,950 priority patent/US20120203282A1/en
Application granted granted Critical
Publication of US8162979B2 publication Critical patent/US8162979B2/en
Priority to US14/628,573 priority patent/US9848917B2/en
Assigned to Knobbe, Martens, Olson & Bear, LLP reassignment Knobbe, Martens, Olson & Bear, LLP SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: K SPINE, INC.
Assigned to K2M, INC. reassignment K2M, INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: SILICON VALLEY BANK
Assigned to K2M, INC. reassignment K2M, INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: K SPINE, INC.
Assigned to K SPINE, INC. reassignment K SPINE, INC. CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). Assignors: VERTECH, INC.
Assigned to K2M, INC. reassignment K2M, INC. CORRECTIVE ASSIGNMENT TO CORRECT THE ASSIGNEE ADDRESS PREVIOUSLY RECORDED AT REEL: 035889 FRAME: 0140. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT. Assignors: K SPINE, INC.
Assigned to K SPINE, INC. reassignment K SPINE, INC. SECURITY INTEREST TERMINATION Assignors: Knobbe, Martens, Olson & Bear, LLP
Assigned to SILICON VALLEY BANK, AS ADMINISTRATIVE AGENT reassignment SILICON VALLEY BANK, AS ADMINISTRATIVE AGENT SECOND AMENDMENT TO PATENT SECURITY AGREEMENT Assignors: K2M HOLDINGS, INC., K2M UK LIMITED, K2M, INC.
Priority to US15/817,750 priority patent/US10426523B2/en
Assigned to K2M HOLDINGS, INC., K2M, INC., K2M UK LIMITED reassignment K2M HOLDINGS, INC. RELEASE BY SECURED PARTY (SEE DOCUMENT FOR DETAILS). Assignors: SILICON VALLEY BANK
Priority to US16/565,994 priority patent/US11246628B2/en
Priority to US17/668,955 priority patent/US20220160403A1/en
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/70—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
    • A61B17/7001—Screws or hooks combined with longitudinal elements which do not contact vertebrae
    • A61B17/7041—Screws or hooks combined with longitudinal elements which do not contact vertebrae with single longitudinal rod offset laterally from single row of screws or hooks
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/70—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
    • A61B17/7053—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant with parts attached to bones or to each other by flexible wires, straps, sutures or cables
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
    • A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
    • A61B17/70—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
    • A61B17/7062—Devices acting on, attached to, or simulating the effect of, vertebral processes, vertebral facets or ribs ; Tools for such devices
    • A61B17/707—Devices acting on, or attached to, a transverse process or rib; Tools therefor
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B2017/00017—Electrical control of surgical instruments
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B2017/00017—Electrical control of surgical instruments
    • A61B2017/00212—Electrical control of surgical instruments using remote controls
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B2017/00017—Electrical control of surgical instruments
    • A61B2017/00221—Electrical control of surgical instruments with wireless transmission of data, e.g. by infrared radiation or radiowaves
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
    • A61B2017/564—Methods for bone or joint treatment

Definitions

  • This application generally relates to devices and methods for adjusting anatomical structures. More particularly, this application related to devices and methods for correcting skeletal deformities, such as spinal deformities.
  • Back pain e.g., pain associated with the spinal column or mechanical back pain
  • back pain may be caused by structural defects, by injuries or over the course of time from the aging process.
  • back pain is frequently caused by repetitive and/or high stress loads on or increased motion around certain boney or soft tissue structures.
  • the natural course of aging leads to degeneration of the disc, loss of disc height, and instability of the spine among other structural manifestations at or around the spine.
  • the posterior elements of the spine bear increased loads with disc height loss, and subsequently attempt to compensate with the formation of osteophytes and thickening of various stabilizing spinal ligaments.
  • the facet joints may develop pain due to arthritic changes caused by increased loads.
  • osteophytes in the neural foramina and thickening of spinal ligaments can lead to spinal stenosis, or impingement of nerve roots in the spinal canal or neural foramina. Scoliosis may also create disproportionate loading on various elements of the spine and may require correction, stabilization or fusion.
  • Spinal fusion is one way of stabilizing the spine to reduce pain.
  • anterior interbody or posterior fusion prevents movement between one or more joints where pain is occurring from irritating motion. Fusion typically involves removal of the native disc, packing bone graft material into the resulting intervertebral space, and anterior stabilization, e.g., with intervertebral fusion cages or posterior stabilization, e.g., supporting the spinal column with internal fixation devices such as rods and screws. Internal fixation is typically an adjunct to attain intervertebral fusion.
  • Many types of spine implants are available for performing spinal fixation, including the Harrington hook and rod, pedicle screws and rods, interbody fusion cages, and sublaminar wires.
  • Scoliosis is typically considered an abnormal lateral curvature of the vertebral column.
  • correction of scoliosis has been attempted a number of ways. Typically correction is followed by fusion.
  • a Harrington rod has been used where a compressing or distracting rod is attached above and below a curved arch of the deformity. The spine is stretched longitudinally to straighten the spine as the rod is lengthened. The spine is then fused.
  • the correction force in this device and in similar devices is a distraction force that may have several drawbacks including possible spinal cord damage, as well as the high loading on the upper and lower attachment sites.
  • segmental hook and screw fixation exists for providing distraction and derotating corrective forces.
  • a Luque device has been used where the spine is wired to a rod at multiple fixation points along the rod and pulls the spine to the rod. The spine is pulled to the rod with a wire and the spine is then fused.
  • Anterior procedures also exist in the form of fusion via rod and screw fixation systems and newer technology involving staples across the disc space that purport to correct the deformity without requiring fusion. The corrective force is derotation with or without compression.
  • a system for correcting a spinal deformity comprises at least one implant configured to be fixed to a first side of a vertebra.
  • the system further comprises a rod adapted to extend generally along an axis parallel to an axis of the spine, on a second side of the vertebra, and at least one adjustment member coupled to the rod.
  • the system further comprises at least one force directing member adapted to extend between the implant and the adjustment member. The force directing member is retractable toward and extendible from the adjustment member.
  • the system comprises a plurality of implants and a plurality of force directing members.
  • the system comprises an implantable motor configured to drive the at least one adjustment member.
  • the motor can comprise a stepper motor.
  • the system can comprise an implantable power source configured to supply power to the motor.
  • the implants each comprise a first portion configured for fixation to a pedicle on the first side of a vertebra and a second portion configured to extend to the second side of the vertebra when the first portion is fixed to the pedicle.
  • the first portion may be a pedicle screw.
  • the second portion may be configured to pass through a spinous process of the vertebra.
  • the system may further comprise a load-spreading member configured to spread load applied by the force directing member to the spinous process.
  • a system for correcting a spinal deformity comprises means for establishing a desired orientation of vertebrae, means for applying force to an individual vertebra, means for directing force to the force applying means, and means for retracting the force directing means toward the orientation establishing means.
  • the means for directing force extends between the force applying means and the orientation establishing means.
  • the system further comprises means for extending the force directing means away from the orientation establishing means.
  • a system for correcting a spinal deformity comprises an elongate rod and a plurality of adjustment members coupled to the rod and spaced apart along the rod.
  • the system further comprises a plurality of flexible force-directing members attached to the adjustment member and adapted to be drawn toward the rod by the adjustment member.
  • the system further comprises a plurality of implants.
  • the implants are each configured to connect to a vertebra of a spine and to be a force directing member, allowing a plurality of vertebrae to each be drawn by a said force directing member and a said adjustment member toward the rod.
  • a method of correcting a spinal deformity comprises affixing an implant to a first side of a vertebra and positioning a rod on a second side of the vertebra so that the rod extends generally parallel to an axis of the spine.
  • the method further comprises providing at least one adjustment member positioned along the rod and positioning at least one force directing member so that it extends between the adjustment member and the implant.
  • the method further comprises applying a force to the at least one force directing member with the adjustment member, thereby moving the vertebra toward the rod.
  • the force is applied percutaneously.
  • the force is applied non-invasively. In such an aspect, the force can be applied using HF energy.
  • the force can be applied using an implanted power source. In such an aspect, the force can be applied by an implanted motor. In one aspect of the embodiment, the method comprises affixing a plurality of the implants to the first side of a plurality of vertebrae and providing a plurality of the adjustment members positioned along the rod. In such an aspect, the method further comprises positioning a plurality of the force directing members between adjustment members and implants, and then applying a force to each of the plurality of force directing members. In such an aspect, a different force may be applied to each force directing member. In another aspect, the force directing member is a wire. In yet another aspect, the force directing member is a cable. In a further aspect, the adjustment member comprises a reel.
  • FIG. 2 is an enlarged view of a portion of FIG. 1 showing a fixation device in accordance with the illustrated embodiment.
  • FIG. 4 is an exploded view of the fixation device shown in FIG. 3 .
  • FIGS. 7A through 7C show plan views of various load-spreading members that can be used with embodiments of the invention.
  • FIG. 8 is an enlarged view of a portion of FIG. 1 showing an adjustment mechanism in accordance with the illustrated embodiment.
  • FIGS. 9 through 13 show schematic views of adjustment mechanisms according to various embodiments.
  • FIG. 14 is a schematic view of a spine deformity correction system in accordance with a further embodiment.
  • FIG. 16 is a process diagram illustrating a method of correcting a spinal deformity, according to a further embodiment.
  • a system 100 generally includes a stabilizing rod 102 , one or more implants 104 , one or more adjustment mechanisms 106 , and one or more connectors 108 .
  • the rod 102 extends generally vertically and is secured to individual vertebrae at locations above and below the curvature to be corrected.
  • the illustrated rod 102 is attached, according to known methods, to transverse processes on the left side of the spine.
  • the rod serves to establish a desired orientation of the spine.
  • the rod 102 can have an adjustable length, such that its length can adapt to the changing length of the spine as its curvature is straightened.
  • the implants 104 are shown fixed to individual vertebrae within the curved portion of the spine, on the opposite side of the spine from the rod 102 .
  • the implants 104 include transverse portions 110 which extend across the spine, toward the rod 102 . As better illustrated in FIG. 2 , the transverse portions 110 can pass through the spinous processes of individual vertebrae.
  • Each of the transverse portions 110 is coupled to one of the connectors 108 .
  • the connectors 108 extend transversely from the transverse portions 110 of the implants 104 toward the rod 102 , and are coupled to the rod 102 via the adjustment mechanisms 106 .
  • the connectors 108 are preferably flexible so that they can be used with adjustment mechanisms 106 of a spooling or winding type.
  • Suitable flexible connectors 108 include monofilament polymer materials, multifilament polymer materials (such as or similar to string or rope), multifilament carbon or ceramic fibers, wire, and multi-stranded cable.
  • Stainless steel or titanium wire or rope are some examples of suitable materials.
  • a wide variety of materials can be used to make the connectors 108 .
  • those materials are preferably biocompatible; indeed, the entire system is preferably made of biocompatible materials.
  • the transverse portion 204 can have a wider, roughly disk-shaped first end 210 so as to engage the receiving slot 208 in the fixation portion 202 .
  • the first end 210 of the transverse portion 204 and the top end 206 of the fixation portion 202 can have any other suitable cooperating configuration so as to guide and engage one another in an appropriate orientation.
  • the transverse portion 204 can also have a hollow construction through which the connector 214 can extend.
  • an implant 300 in accordance with an embodiment is shown fixed to a single vertebra.
  • the implant 300 includes a pedicle screw 302 which is fixed to one side of the illustrated vertebra.
  • a transverse member 304 is advantageously coupled to the head of the pedicle screw 302 and extends through the spinous process of the illustrated vertebra.
  • a load-spreading member 306 can be provided which encircles, or partially encircles the transverse member 304 at the point of contact between the spinous process and the transverse member 304 , contralateral to the adjustment mechanism and rod (not shown in FIG. 6 ).
  • FIGS. 7A through 7C illustrate various configurations of load-spreading elements according to various embodiments.
  • Element 402 has an annular configuration configured to spread loads evenly about the point of contact with the spinous process.
  • Element 404 includes two wings extending from a ring configured to encircle the transverse member.
  • Element 406 includes tentacles extending from a ring. Configurations such as these can also be used to distribute loads to the lamina, in addition to spreading loads across a larger surface area of the spinous process.
  • a load-spreading element can have any other configuration suitable for reducing the concentration of force applied to the spinous process by a transverse member extending therethrough, distributing the forces to other portions of the vertebra (for example, to the lamina), and/or for anchoring the transverse member to the spinous process.
  • the side of the load-spreading elements that contact bone can include such features as barbs, fins, pins, or other similar structure to achieve secure attachment of the extensions to the vertebral bone.
  • an implant according to an embodiment can include a transverse member configured to extend between spinous processes of adjacent vertebra.
  • the transverse member can optionally be anchored to one or both of the adjacent spinous processes via a cable, tether, clasp, clamp, screw, hinge, or other suitable means.
  • the illustrated embodiments generally show each implant fixed to a single vertebra, embodiments can also include one or more implants configured to be fixed to multiple vertebrae.
  • One advantage of multiple-point fixation is the ability to provide not only translational force to the vertebra through the implant, but also rotational force.
  • the amount of rotational force will depend in part on the distance between the axis of the vertebra and the point of attachment of the connector 108 to the implant 104 .
  • This disclosure contemplates selecting or moving that point of attachment to achieve any desired rotational force, as well as a desired translational force.
  • the adjustment mechanism 106 may advantageously include a reel 502 , a circumferential gear 504 surrounding the reel 502 , and a vertical gear 506 in contact with the circumferential gear 504 .
  • the connector 108 is preferably attached to or engaged by the reel 502 . Actuation of the vertical gear 506 via screw head 508 turns the circumferential gear 504 , which turns the reel 502 , thus winding (or unwinding, depending on the direction in which the reel 502 is turned) the connector 108 about the reel 502 .
  • Tightening of the reel 502 draws the connector 108 in toward the adjustment mechanism 106 , thus pulling the associated implant 104 (not shown in FIG. 8 ) toward the adjustment mechanism.
  • the reel 502 and the gears 504 , 506 are housed in a clamp 510 .
  • the adjustment mechanism 106 can be immovably fixed to the rod 102 or can be movable with respect to the rod 102 .
  • a movable adjustment mechanism 106 provides advantages, for example, as the spine straightens and thus lengthens, so that the adjustment mechanisms 106 can be moved to accommodate the relative movement of the spine in comparison to the rod 102 .
  • a movable adjustment mechanism 106 also tends to move to the point directly across from the implant 104 , which is the position creating the least amount of tension in the connector 108 and which is also the ideal position for correction.
  • FIGS. 9 through 13 show examples of adjustment mechanisms according to further embodiments.
  • FIG. 9 shows an adjustment mechanism 520 comprising only a single reel or gear 522 , around which a connector 524 is wound.
  • the gear 522 is disposed along on an axis normal to the axis of the rod 526 .
  • the gear 522 can be directly actuated to tension or loosen the connector 524 .
  • FIG. 10 shows an adjustment mechanism 530 according to a further embodiment.
  • the mechanism 530 includes a spring 532 configured to actuate a vertical gear 534 .
  • the vertical gear 534 contacts a circumferential gear 535 on a reel 536 around which a connector 538 is wound.
  • FIG. 11 shows an adjustment mechanism 540 according to another embodiment.
  • the mechanism 540 includes an implantable power supply 542 configured to actuate a motor 544 .
  • the motor 544 drives a gear 545 on a reel 546 around which a connector 548 is wound.
  • the motor 544 can be configured to exert gradual forces on the connector 548 (and thus, on an implant to which the connector 548 is attached) without the need for puncturing the patient's skin after the initial implantation of the system.
  • the motor 544 can be configured to draw in the connector 548 at a predetermined rate (e.g., 3 mm per day).
  • the motor 544 can be a stepper motor configured to draw in the connector 548 in incremental amounts over time.
  • the motor 544 can be configured to exert a predetermined amount of tension on the connector 548 .
  • Such embodiments can include one or more sensors, controllers, and related circuitry configured to measure the amount of tension on the connector 548 and adjust the tension applied by the motor 544 accordingly.
  • Such embodiments can be configured to time-average the amount of tension on the connector 548 to allow for variation in tension caused by movement of the patient.
  • FIG. 13 illustrates an adjustment mechanism 570 , according to a still further embodiment, coupled to a rod 571 .
  • the adjustment mechanism 106 is shown to be situated along the rod so that the connector 108 extends generally orthogonal to the rod toward the vertebra on which the implant 104 is located. Although this is a preferred embodiment, it is also contemplated that the adjustment mechanism 106 can be located along the rod 102 so that the angle between the axis of the rod 102 and the connector 108 is other than 90 degrees, e.g., 45 degrees, 60 degrees, 75 degrees, or other non-right-angles. Alternatively, instead of locating the adjustment mechanism(s) 106 along the rod 102 adjacent to (or opposite) the vertebra to be moved, they could be located more remotely, e.g., at an end of the rod 102 .
  • the connector could still extend from the implant 104 to the rod 102 at a desired angle, e.g., generally orthogonal to the rod 102 , but could then change direction (e.g., by passing over a pulley or through a hole in the rod, not shown) and then extend parallel to or coaxial with the rod, alongside the rod or inside the rod, to the adjustment mechanism(s) 106 .
  • the system 600 includes a stabilizing rod 602 , one or more implants 604 , one or more adjustment mechanisms 606 , and one or more connectors 608 .
  • the implants 604 are shown attached to alternate vertebrae. Depending on the particular needs of the application, implants 604 can be fixed to all the vertebrae in a curved portion of a spine, or only certain selected vertebrae.
  • FIG. 15 shows an enlarged view of one of the adjustment mechanisms 606 .
  • the adjustment mechanism 606 includes a housing 610 which surrounds a gear/reel mechanism (not visible in FIG. 15 ) as described herein.
  • the housing 610 includes an opening 612 configured to expose a screw head 614 configured to actuate the gear/reel mechanism. Such a configuration allows for actuation of the gear/reel mechanism 606 while separating the gear/reel mechanism and surrounding body tissues.
  • Embodiments also include methods of correcting a spinal deformity. Note that the following method description relates to some of the contemplated surgical methods, but it should not be implied that all of the recited method steps are mandatory or that they must be performed in the identical manner specified. Instead, this disclosure is exemplary in nature.
  • individual vertebrae are targeted based on a pre-operative plan for correcting an abnormal curvature a patient's spine (such as a scoliotic curvature of a patient's spine).
  • Pre-operative planning can involve review of x-rays or CT scans, as well as physical examination of the patient. Once the targeted vertebrae are identified, implants are surgically fixed to each of the targeted vertebrae.
  • Examples of such embodiments include providing an adjustable ligament between the femur and tibia of the leg, for example to correct a torn cruciate ligament; providing an adjustable sling between the pelvis or pubis and the bladder or urethra for the treatment of urinary incontinence; providing an adjustable attachment between a bone (such as the pelvis) and the uterus for the treatment of uterine prolapse; providing an adjustable attachment between the mandible or hyoid bone and the tongue or other upper airway structure for the treatment of snoring or obstructive sleep apnea; and providing an adjustable lifting mechanism between a cranial bone and soft tissue of the face to enable an adjustable face lift or eye lift.

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  • Health & Medical Sciences (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Neurology (AREA)
  • Surgery (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
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  • Molecular Biology (AREA)
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US12/134,058 2007-06-06 2008-06-05 Medical device and method to correct deformity Active 2030-11-03 US8162979B2 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
US12/134,058 US8162979B2 (en) 2007-06-06 2008-06-05 Medical device and method to correct deformity
US13/446,950 US20120203282A1 (en) 2007-06-06 2012-04-13 Medical device and method to correct deformity
US14/628,573 US9848917B2 (en) 2007-06-06 2015-02-23 Medical device and method to correct deformity
US15/817,750 US10426523B2 (en) 2007-06-06 2017-11-20 Medical device and method to correct deformity
US16/565,994 US11246628B2 (en) 2007-06-06 2019-09-10 Medical device and method to correct deformity
US17/668,955 US20220160403A1 (en) 2007-06-06 2022-02-10 Medical Device And Method To Correct Deformity

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US93332607P 2007-06-06 2007-06-06
US12/134,058 US8162979B2 (en) 2007-06-06 2008-06-05 Medical device and method to correct deformity

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US13/446,950 Continuation US20120203282A1 (en) 2007-06-06 2012-04-13 Medical device and method to correct deformity

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US20090012565A1 US20090012565A1 (en) 2009-01-08
US8162979B2 true US8162979B2 (en) 2012-04-24

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US12/134,058 Active 2030-11-03 US8162979B2 (en) 2007-06-06 2008-06-05 Medical device and method to correct deformity
US13/446,950 Abandoned US20120203282A1 (en) 2007-06-06 2012-04-13 Medical device and method to correct deformity
US14/628,573 Expired - Fee Related US9848917B2 (en) 2007-06-06 2015-02-23 Medical device and method to correct deformity
US15/817,750 Expired - Fee Related US10426523B2 (en) 2007-06-06 2017-11-20 Medical device and method to correct deformity
US16/565,994 Active 2028-10-19 US11246628B2 (en) 2007-06-06 2019-09-10 Medical device and method to correct deformity
US17/668,955 Pending US20220160403A1 (en) 2007-06-06 2022-02-10 Medical Device And Method To Correct Deformity

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US13/446,950 Abandoned US20120203282A1 (en) 2007-06-06 2012-04-13 Medical device and method to correct deformity
US14/628,573 Expired - Fee Related US9848917B2 (en) 2007-06-06 2015-02-23 Medical device and method to correct deformity
US15/817,750 Expired - Fee Related US10426523B2 (en) 2007-06-06 2017-11-20 Medical device and method to correct deformity
US16/565,994 Active 2028-10-19 US11246628B2 (en) 2007-06-06 2019-09-10 Medical device and method to correct deformity
US17/668,955 Pending US20220160403A1 (en) 2007-06-06 2022-02-10 Medical Device And Method To Correct Deformity

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US (6) US8162979B2 (de)
EP (1) EP2155086B1 (de)
JP (1) JP2010528779A (de)
AU (1) AU2008262019B2 (de)
CA (1) CA2689965A1 (de)
WO (1) WO2008154313A1 (de)

Cited By (53)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100256684A1 (en) * 2009-03-26 2010-10-07 Kspine, Inc. Semi-constrained anchoring system
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